An image scanning apparatus includes a transport roller transporting an original, a CCD scanning a first side of the original, a CIS scanning unit scanning a second side of the original, and a flap for reversing the original and sending the original to a transport path. The image forming apparatus transmits setting information contained in a setting screen to the information processing apparatus and receives customized setting information generated by the information processing apparatus based on the setting information, whereby the setting screen is customized by the customized setting information. When the airbag inflates, a right half portion inflates faster than a left half portion. The second circuit board is installed above the first circuit board and below the plurality of keys.